CAyunsuyunjiasu

优秀论文及配套源码。Hilbert-Huang变换(HHT)是一种新的非平稳信号处理技术，该方法由经验模态 分解(EMD)与Hilbert谱分析两部分组成。任意的非平稳信号首先经过EMD方法处理后被分解为一系列具有不同特征尺度的数据序列，每一个序列称为一个固有模态函数(IMF)，然后对每个IMF分量进行Hilbert谱分析得到相应分量的Hilbert谱，汇总所有Hilbert谱就得到了原信号的谱图。该方法从本质上讲是对非平稳信号进行平稳化处理，将信号中真实存在的不同尺度波动或趋势逐级分解出来，最终用瞬时频率和能量来表征原信号的频率含量。 本文研究了基于HHT的暂态电能质量扰动检测方法，介绍了HHT的基本原理和利用HHT检测电能质量多扰动信号的实现方法。仿真试验表明该方法可以实时检测扰动的起止时刻，持续时间和扰动幅度，适用于电能质量多扰动的监测和辨识系统。 (Hilbert-Huang Transform(HHT) is a new non-stationary signal processing technology，including the Empirical Mode Decomposition(EMD) and Hilbert spectral analysis．In this method，arbitrary non-stationary signals was divided into a series data sequence with different characteristic scales after the first EMD treatment，each sequence is called an intrinsic mode function(IMF)，and then each IMF component gained corresponding the Hilbert spectrum though Hilbert spectrum analysis，a summary of all Hilbert spectrum assembled to the spectra of the original signal．In essence，this method is a stable processing for non-stationary signal，which decomposed the different fluctuations or trends in the signal in rum，and represented the frequency content of the original signal using the final instantaneous frequency and energy． This paper study a method to detect power quality disturbances based on the HHT，in which the principle and the realization of the HHT and the realization of power quality disturbance)

对序列进行李亚普诺夫指数的运算，判断初始序列何时进入混沌状态(Lyapunov exponent of the sequence of operations, to determine when to enter the chaotic state of the initial sequence)

face recognition with pca-lda and orl database

用于混沌开发。混沌方式识别的一个matlab程序。十分好用。可以准确预测数据(a very good software which can make more strong and more popular. more good)

Simple allocate only memory allocator. Used to allocate memory at application start time.

Turbo码性能仿真源程序信道编码方面的(Turbo code performance simulation source channel coding of)

两电平脉宽调制变换器，希望对于电力电子与电力传动专业研一学生有用。(Two-level PWM converter, hope for the power electronics and power transmission expertise useful to a student research.)

MATLAB+程式設計與應用+張智星++清蔚科技出版(Matlab Programming)

说明：  同步电机的matlab语言程序，在matlab环境下开发(Matlab synchronous machine language program developed in matlab environment)

离散对称信道的信道容量的计算是香农信息论一个很重要的方面(Discrete symmetric channel is the channel capacity is calculated by the Shannon information theory is a very important aspect)